| Name | Penstemon sepalulus A. Nelson |
| Authorship | A. Nelson |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Penstemon Schmidel |
| GUID | urn:lsid:ipni.org:names:808291-1 |
| Holdings | 16 Specimens held in the Harvard University Herbaria identified as Penstemon sepalulus A. Nelson |
| Identification made in | [no date] (2), 1979 (1), 1992 (13) |